// ========================================================================= //

// includes
#include "stdio.h"
#include "stdlib.h"
#include "time.h"
#include "string.h"
#include "limits.h"
#include "float.h"



#define JOTAI_NUM_RANDS_ 25

const unsigned rand_primes[JOTAI_NUM_RANDS_] = {179, 103, 479, 647, 229, 37, 271, 557, 263, 607, 18743, 50359, 21929, 48757, 98179, 12907, 52937, 64579, 49957, 52567, 507163, 149939, 412157, 680861, 757751};

int next_i() {
  int counter = 0;
  return rand_primes[(++counter)%JOTAI_NUM_RANDS_];
}

float next_f() {
  int counter = 0;
  return rand_primes[(++counter)%JOTAI_NUM_RANDS_] / 757751.0F;
} 


// Usage menu
void usage() {
    printf("%s", "Usage:\n\
    prog [ARGS]\n\
\nARGS:\n\
       0            int-bounds\n\
       1            big-arr\n\
       2            big-arr-10x\n\
       3            empty\n\
\n\
");

}


// ------------------------------------------------------------------------- //

#define NULL ((void*)0)
typedef unsigned long size_t;  // Customize by platform.
typedef long intptr_t; typedef unsigned long uintptr_t;
typedef long scalar_t__;  // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */
struct spi_mpc8xxx_cs {int dummy; } ;
struct spi_device {int mode; } ;

/* Variables and functions */
 int EINVAL ; 
 int SPI_LSB_FIRST ; 

__attribute__((used)) static int mspi_apply_qe_mode_quirks(struct spi_mpc8xxx_cs *cs,
				struct spi_device *spi,
				int bits_per_word)
{
	/* QE uses Little Endian for words > 8
	 * so transform all words > 8 into 8 bits
	 * Unfortnatly that doesn't work for LSB so
	 * reject these for now */
	/* Note: 32 bits word, LSB works iff
	 * tfcr/rfcr is set to CPMFCR_GBL */
	if (spi->mode & SPI_LSB_FIRST &&
	    bits_per_word > 8)
		return -EINVAL;
	if (bits_per_word > 8)
		return 8; /* pretend its 8 bits */
	return bits_per_word;
}

// ------------------------------------------------------------------------- //

int main(int argc, char *argv[]) {

    if (argc != 2) {
        usage();
        return 1;
    }

    int opt = atoi(argv[1]);
    switch(opt) {

    // int-bounds
    case 0:
    {
          int bits_per_word = 100;
        
          int _len_cs0 = 1;
          struct spi_mpc8xxx_cs * cs = (struct spi_mpc8xxx_cs *) malloc(_len_cs0*sizeof(struct spi_mpc8xxx_cs));
          for(int _i0 = 0; _i0 < _len_cs0; _i0++) {
              cs[_i0].dummy = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int _len_spi0 = 1;
          struct spi_device * spi = (struct spi_device *) malloc(_len_spi0*sizeof(struct spi_device));
          for(int _i0 = 0; _i0 < _len_spi0; _i0++) {
              spi[_i0].mode = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int benchRet = mspi_apply_qe_mode_quirks(cs,spi,bits_per_word);
          printf("%d\n", benchRet); 
          free(cs);
          free(spi);
        
        break;
    }
    // big-arr
    case 1:
    {
          int bits_per_word = 255;
        
          int _len_cs0 = 65025;
          struct spi_mpc8xxx_cs * cs = (struct spi_mpc8xxx_cs *) malloc(_len_cs0*sizeof(struct spi_mpc8xxx_cs));
          for(int _i0 = 0; _i0 < _len_cs0; _i0++) {
              cs[_i0].dummy = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int _len_spi0 = 65025;
          struct spi_device * spi = (struct spi_device *) malloc(_len_spi0*sizeof(struct spi_device));
          for(int _i0 = 0; _i0 < _len_spi0; _i0++) {
              spi[_i0].mode = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int benchRet = mspi_apply_qe_mode_quirks(cs,spi,bits_per_word);
          printf("%d\n", benchRet); 
          free(cs);
          free(spi);
        
        break;
    }
    // big-arr-10x
    case 2:
    {
          int bits_per_word = 10;
        
          int _len_cs0 = 100;
          struct spi_mpc8xxx_cs * cs = (struct spi_mpc8xxx_cs *) malloc(_len_cs0*sizeof(struct spi_mpc8xxx_cs));
          for(int _i0 = 0; _i0 < _len_cs0; _i0++) {
              cs[_i0].dummy = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int _len_spi0 = 100;
          struct spi_device * spi = (struct spi_device *) malloc(_len_spi0*sizeof(struct spi_device));
          for(int _i0 = 0; _i0 < _len_spi0; _i0++) {
              spi[_i0].mode = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int benchRet = mspi_apply_qe_mode_quirks(cs,spi,bits_per_word);
          printf("%d\n", benchRet); 
          free(cs);
          free(spi);
        
        break;
    }
    // empty
    case 3:
    {
          int bits_per_word = ((-2 * (next_i()%2)) + 1) * next_i();
        
          int _len_cs0 = 1;
          struct spi_mpc8xxx_cs * cs = (struct spi_mpc8xxx_cs *) malloc(_len_cs0*sizeof(struct spi_mpc8xxx_cs));
          for(int _i0 = 0; _i0 < _len_cs0; _i0++) {
              cs[_i0].dummy = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int _len_spi0 = 1;
          struct spi_device * spi = (struct spi_device *) malloc(_len_spi0*sizeof(struct spi_device));
          for(int _i0 = 0; _i0 < _len_spi0; _i0++) {
              spi[_i0].mode = ((-2 * (next_i()%2)) + 1) * next_i();
        
          }
        
          int benchRet = mspi_apply_qe_mode_quirks(cs,spi,bits_per_word);
          printf("%d\n", benchRet); 
          free(cs);
          free(spi);
        
        break;
    }
    default:
        usage();
        break;

    }

    return 0;
}
